HT Series MTX Series PRO Series

HT Series MTX Series PRO Series Professional Series Two-Way Portable Radios Detailed Service Manual

Document History The following major changes have been implemented in this manual since the previous edition: Edition Description Date 6881088E46-E The Theory of Operation section has been divided into the following six sections: Distribution Keypad UHF Band 1 UHF Band 2 VHF Lowband, 800 MHz, PassPort, and 900 MHz Troubleshooting Flow Charts in the Maintenance section have updated. Added 8480587Z05 to UHF Band 1 Added 8480450Z14 to UHF Band 1 Added 8486458Z02 to UHF Band 1 Added 8486458Z03 to UHF Band 1 Added 8415234H01 to UHF Band 1 Added 8485677Z03 to UHF Band 2 Added 8486686Z01 to UHF Band 2 Added 8486686Z02 to UHF Band 2 Added 8415235H01 to UHF Band 2 Added 8486062B16 to VHF Added 8486062B17 to VHF Added 8486101B11 to VHF Added 8486473Z03 to VHF Added 8486473Z04 to VHF Added 8415112H01 to VHF July, 2005

Title Page HT Series MTX Series PRO Series Professional Series Two-Way Portable Radio Detailed Service Manual Motorola, Inc. 8000 West Sunrise Boulevard Fort Lauderdale, Florida 33322 6881088C46-F

Foreword The information contained in this manual relates to all models of the Professional Series two-way portable radios, unless otherwise specified. This manual provides sufficient information to enable qualified service shop technicians to troubleshoot and repair portable radios to the component level. For details on the level 1 or 2 maintenance procedures, refer to the applicable manuals, which are available separately. A list of publications is provided in this manual in the section, "1.3 Related Documents" on page 1-2. Product Safety and RF Exposure Compliance! C a u t i o n Before using this product, read the operating instructions for safe usage contained in the Product Safety and RF Exposure booklet enclosed with your radio. ATTENTION! This radio is restricted to occupational use only to satisfy FCC RF energy exposure requirements. Before using this product, read the RF energy awareness information and operating instructions in the Product Safety and RF Exposure booklet enclosed with your radio (Motorola Publication part number 6881095C98) to ensure compliance with RF energy exposure limits. For a list of Motorola-approved antennas, batteries, and other accessories, visit the following web site which lists approved accessories: http://www.motorola.com/cgiss/index.shtml Manual Revisions Changes which occur after this manual is printed are described in FMRs (Florida Manual Revisions). These FMRs provide complete replacement pages for all added, changed, and deleted items, including pertinent parts list data, schematics, and component layout diagrams. Computer Software Copyrights The Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconductor memories or other media. Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted computer programs, including, but not limited to, the exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied, reproduced, modified, reverse-engineered, or distributed in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola products shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents or patent applications of Motorola, except for the normal non-exclusive license to use that arises by operation of law in the sale of a product. Document Copyrights duplication or distribution of this document or any portion thereof shall take place without the express written permission of Motorola. part of this manual may be reproduced, distributed, or transmitted in any form or by any means, electronic or mechanical, for any purpose without the express written permission of Motorola. Disclaimer The information in this document is carefully examined, and is believed to be entirely reliable. However, no responsibility is assumed for inaccuracies. Furthermore, Motorola reserves the right to make changes to any products herein to improve readability, function, or design. Motorola does not assume any liability arising out of the applications or use of any product or circuit described herein; nor does it cover any license under its patent rights nor the rights of others. Trademarks MOTOROLA and the Stylized M logo are registered in the US Patent & Trademark Office. All other products or service names are the property of their respective owners. Motorola, Inc. 2005.

Table of Contents iii Table of Contents Foreword...ii Product Safety and RF Exposure Compliance...ii Manual Revisions...ii Computer Software Copyrights...ii Document Copyrights...ii Disclaimer...ii Trademarks...ii List of Figures...xi Intrinsically Safe Radio Information...xix FMRC Approved Equipment...xix Repair of FMRC Approved Products...xx Repair...xx Relabeling...xx Do t Substitute Options or Accessories...xxi Chapter 1 Introduction...1-1 1.1 Scope of Manual... 1-1 1.2 Warranty and Service Support... 1-1 1.2.1 Warranty Period... 1-1 1.2.2 Return Instructions... 1-1 1.2.3 After Warranty Period... 1-1 1.3 Related Documents... 1-2 1.4 Technical Support... 1-2 1.4.1 Piece Parts Availability... 1-2 1.5 Radio Model Chart and Specifications... 1-3 1.6 Radio Model Information... 1-3 Chapter 2 Radio Power Distribution...2-1 Chapter 3 Keypad...3-1 3.1 Controller Board... 3-1 3.1.1 MCU Digital... 3-2 3.1.2 Real Time Clock... 3-2 3.1.3 Circuit Description... 3-3 3.1.4 MODB/VSTBY Supply... 3-3 3.1.5 Audio/Signaling... 3-4

iv Table of Contents Chapter 4 UHF Band 1 Theory of Operation...4-1 4.1 Transmitter... 4-1 4.1.1 General... 4-1 4.1.2 Power Amplifier... 4-1 4.1.3 Antenna Switch... 4-2 4.1.4 Harmonic Filter... 4-2 4.1.5 Antenna Matching Network... 4-2 4.1.6 Power Control Integrated Circuit (PCIC)... 4-2 4.2 Receiver... 4-3 4.2.1 Receiver Front-End... 4-3 4.2.2 Receiver Back-End... 4-4 4.3 Frequency Generation Circuitry... 4-4 4.4 Synthesizer... 4-5 4.5 Voltage-Controlled Oscillator (VCO)... 4-6 Chapter 5 UHF Band 2 Theory of Operation...5-1 5.1 Transmitter... 5-1 5.1.1 General... 5-1 5.1.2 Power Amplifier... 5-1 5.1.3 Antenna Switch... 5-2 5.1.4 Harmonic Filter... 5-2 5.1.5 Antenna Matching Network... 5-2 5.1.6 Power Control Integrated Circuit (PCIC)... 5-2 5.2 Receiver... 5-3 5.2.1 Receiver Front-End... 5-3 5.2.2 Receiver Back-End... 5-3 5.3 Frequency Generation Circuitry... 5-4 5.4 Synthesizer... 5-5 5.5 Voltage-Controlled Oscillator (VCO)... 5-6 Chapter 6 VHF Theory of Operation...6-1 6.1 Transmitter... 6-1 6.1.1 General... 6-1 6.1.2 Power Amplifier... 6-1 6.1.3 Antenna Switch... 6-2 6.1.4 Harmonic Filter... 6-2 6.1.5 Antenna Matching Network... 6-2 6.1.6 Power Control Integrated Circuit (PCIC)... 6-2 6.2 Receiver (for all models except those with PCB 8486473Z04)... 6-3 6.2.1 Receiver Front-End... 6-3 6.2.2 Receiver Back-End... 6-4 6.2.3 Automatic Gain Control Circuit... 6-4 6.3 Receiver (for models with PCB 8486473Z04)... 6-5 6.3.1 Receiver Front-End... 6-6 6.3.2 Receiver Back-End... 6-6

Table of Contents v 6.3.3 Automatic Gain Control Circuit... 6-7 6.4 Frequency Generation Circuitry... 6-8 6.5 Synthesizer... 6-9 6.6 Voltage-Controlled Oscillator (VCO)... 6-10 Chapter 7 Low Band, 800 MHz, PassPort & 900 MHz Theory of Operation...7-1 7.1 Introduction... 7-1 7.2 Low Band Transmitter... 7-1 7.2.1 Power Amplifier (PA)... 7-1 7.2.2 Antenna Switch... 7-2 7.2.3 Harmonic Filter... 7-2 7.2.4 Antenna Matching Transformer... 7-2 7.2.5 Power Control Integrated Circuit (PCIC)... 7-2 7.2.6 Temperature Cut Back Circuit... 7-2 7.2.7 Electrostatic Discharge (ESD) Protection Circuit... 7-2 7.3 Low Band Receiver... 7-3 7.3.1 Receiver Front-End... 7-3 7.3.2 Receiver Back-End... 7-4 7.3.3 Automatic Gain Control (AGC)... 7-4 7.3.4 Frequency Generation Circuit... 7-4 7.4 Synthesizer... 7-5 7.5 Voltage Control Oscillators (VCO)... 7-6 7.5.1 Receive VCO... 7-6 7.5.2 Transmit VCO... 7-6 7.5.3 Buffer... 7-6 7.5.4 Diplexer/Output Filters... 7-7 7.5.5 Prescalar Feedback... 7-7 7.6 800 MHz Transmitter... 7-7 7.6.1 Power Amplifier... 7-7 7.6.2 Antenna Switch... 7-8 7.6.3 Harmonic Filter... 7-8 7.6.4 Power Control Integrated Circuit (PCIC)... 7-8 7.7 800 MHz Receiver... 7-9 7.7.1 Receiver Front-End... 7-9 7.7.2 Receiver Back-End... 7-10 7.7.3 Automatic Gain Control Circuit... 7-10 7.7.4 Frequency Generation Circuit... 7-11 7.8 Synthesizer... 7-12 7.8.1 Voltage Control Oscillator (VCO)... 7-13 7.9 Trunked Radio Systems... 7-14 7.9.1 Privacy Plus Trunked Systems... 7-14 7.9.2 LTR Trunked Systems... 7-14 7.9.3 MPT Trunked Systems... 7-14 7.9.4 PassPort Trunked Systems... 7-15 7.9.4.1 Power Supplies... 7-15

vi Table of Contents 7.9.4.2 Microcontroller (MCU)... 7-15 7.9.4.3 Low Speed Data Filter... 7-15 7.9.4.4 Keyboard Circuit... 7-15 7.9.4.5 BackLight Driver and LED's... 7-16 7.9.4.6 Voice Storage... 7-16 7.10 900 MHz Transmitter... 7-16 7.10.1 Power Amplifier... 7-17 7.10.2 Antenna Switch... 7-17 7.10.3 Harmonic Filter... 7-17 7.10.4 Power Control Integrated Circuit (PCIC)... 7-17 7.11 900 MHz Receiver... 7-18 7.11.1 Receiver Front-End... 7-18 7.11.2 Receiver Back-End... 7-19 7.11.3 Hear Clear IC... 7-19 7.11.3.1 Receive Path for Radios with Hear Clear... 7-20 7.11.3.2 Hear Clear Routing of Data/Signaling... 7-20 7.11.4 Automatic Gain Control Circuit... 7-20 7.12 Frequency Generation Circuitry... 7-21 7.13 900 MHz Synthesizer... 7-22 7.14 900 MHz Voltage Control Oscillator (VCO)... 7-24 Chapter 8 Maintenance...8-1 8.1 Introduction... 8-1 8.2 Preventive Maintenance... 8-1 8.3 Inspection... 8-1 8.3.1 Cleaning... 8-1 8.4 Safe Handling of CMOS and LDMOS... 8-2 8.5 General Repair Procedures and Techniques... 8-2 8.6 Recommended Test Tools... 8-4 8.7 Replacing the Circuit Board Fuse... 8-5 8.8 Removing and Reinstalling the Circuit Board... 8-7 8.9 Power Up Self-Test Error Codes... 8-7 8.10 UHF Band 1 Troubleshooting Charts... 8-9 8.10.1 Troubleshooting Flow Chart for Controller for all models except PCB 8486458Z03... 8-9 8.10.2 Troubleshooting Flow Chart for Controller for models with PCB 8486458Z03... 8-10 8.10.3 Troubleshooting Flow Chart for Receiver for all models except PCB 8486458Z03 (Sheet 1 of 2)... 8-11 8.10.4 Troubleshooting Flow Chart for Receiver for all models except PCB 8486458Z03 (Sheet 2 of 2)... 8-12 8.10.5 Troubleshooting Flow Chart for Receiver, for models with PCB 8486458Z03 (Sheet 1 of 2)... 8-13 8.10.6 Troubleshooting Flow Chart for Receiver, for models with PCB 8486458Z03 (Sheet 2 of 2)... 8-14 8.10.7 Troubleshooting Flow Chart for Transmitter... 8-15 8.10.8 Troubleshooting Flow Chart for Synthesizer... 8-16

Table of Contents vii 8.10.9 Troubleshooting Flow Chart for VCO... 8-17 8.11 UHF Band 2 Troubleshooting Charts... 8-18 8.11.1 Troubleshooting Flow Chart for Controller for all models except those with PCB 8486686Z02... 8-18 8.11.2 Troubleshooting Flow Chart for Controller for models with PCB 8486686Z02... 8-19 8.11.3 Troubleshooting Flow Chart for Receiver, for all models except those with PCB 8486686Z02 (Sheet 1 of 2)... 8-20 8.11.4 Troubleshooting Flow Chart for Receiver, for all models except those with PCB 8486686Z02 (Sheet 2 of 2)... 8-21 8.11.5 Troubleshooting Flow Chart for Receiver, for models with PCB 8486686Z02 (Sheet 1 of 2)... 8-22 8.11.6 Troubleshooting Flow Chart for Receiver, for models with PCB 8486686Z02 (Sheet 2 of 2)... 8-23 8.11.7 Troubleshooting Flow Chart for Transmitter... 8-24 8.11.8 Troubleshooting Flow Chart for Synthesizer... 8-25 8.11.9 Troubleshooting Flow Chart for VCO... 8-26 8.12 VHF Troubleshooting Charts... 8-27 8.12.1 Troubleshooting Flow Chart for Controller for all models except those with PCB 8486473Z04... 8-27 8.12.2 Troubleshooting Flow Chart for Controller for models with PCB 8486473Z04... 8-28 8.12.3 Troubleshooting Flow Chart for Receiver, for all models except those with PCB 8486473Z04 (Sheet 1 of 2)... 8-29 8.12.4 Troubleshooting Flow Chart for Receiver, for all models except those with PCB 8486473Z04 (Sheet 2 of 2)... 8-30 8.12.5 Troubleshooting Flow Chart for Receiver for models with PCB 8486473Z04 (Sheet 1 of 2)... 8-31 8.12.6 Troubleshooting Flow Chart for Receiver for models with PCB 8486473Z04 (Sheet 2 of 2)... 8-32 8.12.7 Troubleshooting Flow Chart for Transmitter... 8-33 8.12.8 Troubleshooting Flow Chart for Synthesizer... 8-34 8.12.9 Troubleshooting Flow Chart for VCO... 8-35 8.13 Low Band Troubleshooting Charts... 8-36 8.13.1 Troubleshooting Flow Chart for Controller... 8-36 8.13.2 Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)... 8-37 8.13.3 Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)... 8-38 8.13.4 Troubleshooting Flow Chart for Transmitter... 8-39 8.13.5 Troubleshooting Flow Chart for Synthesizer... 8-40 8.13.6 Troubleshooting Flow Chart for VCO... 8-41 8.14 800 MHz Troubleshooting Charts... 8-42 8.14.1 Troubleshooting Flow Chart for Controller... 8-42 8.14.2 Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)... 8-43 8.14.3 Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)... 8-44 8.14.4 Troubleshooting Flow Chart for Transmitter... 8-45 8.14.5 Troubleshooting Flow Chart for Synthesizer... 8-46 8.14.6 Troubleshooting Flow Chart for VCO... 8-47

viii Table of Contents 8.15 PassPort Trunking Troubleshooting Chart... 8-48 8.16 Keypad Troubleshooting Chart... 8-49 8.17 900 MHz Troubleshooting Charts... 8-50 8.17.1 Troubleshooting Flow Chart for Controller (Sheet 1 of 2)... 8-50 8.17.2 Troubleshooting Flow Chart for Controller (Sheet 2 of 2)... 8-51 8.17.3 Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)... 8-52 8.17.4 Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)... 8-53 8.17.5 Troubleshooting Flow Chart for Transmitter... 8-54 8.17.6 Troubleshooting Flow Chart for Synthesizer... 8-55 8.17.7 Troubleshooting Flow Chart for VCO... 8-56 Chapter 9 Schematic Diagrams, Overlays, and Parts Lists...9-1 9.1 Introduction... 9-1 9.1.1 tes For All Schematics and Circuit Boards... 9-1 9.2 Flex Layout... 9-2 9.2.1 Keypad-Controller Interconnect Flex Schematic... 9-3 9.2.2 Keypad-Controller Interconnect Flex Parts List... 9-3 9.2.3 Universal Flex Connector... 9-4 9.2.4 Universal Connector Flex Schematic... 9-5 9.2.5 Universal Flex Connector Parts List... 9-5 9.3 Keypad Top and Bottom Overlays... 9-6 9.4 Keypad Circuit Board/Schematic Diagrams and Parts List... 9-7 9.5 Controller Circuit Board/Schematic Diagrams and Parts List... 9-13 9.6 UHF Band 1 Circuit Board/Schematic Diagrams and Parts List (PCB 8480450Z03)... 9-21 9.7 UHF Band 1 Circuit Board/Schematic Diagrams and Parts List (PCB 8480450Z13 / 8480587Z05)... 9-33 9.8 UHF Band 1 Circuit Board/Schematic Diagrams and Parts List (PCB 8480450Z14)... 9-47 9.9 UHF Band 1 Circuit Board/Schematic Diagrams and Parts List (PCB 8486458Z02)... 9-67 9.10 UHF Band 1 Circuit Board/Schematic Diagrams and Parts List (PCB 8486458Z03)... 9-81 9.11 UHF 1 Band Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H01)... 9-101 9.12 UHF Band 1 Circuit Board/Schematic Diagrams and Parts List... 9-123 9.13 UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (PCB 8485641Z02)... 9-135 9.14 UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (PCB 8485641Z06 / 8485677Z03)... 9-147 9.15 UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (PCB 8486686Z01)... 9-161 9.16 UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (PCB 8486686Z02)... 9-175 9.17 UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (PCB 8415235H01)... 9-195 9.18 UHF Band 2 Circuit Board/Schematic Diagrams and Parts List... 9-217

Table of Contents ix 9.19 VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8486062B09)... 9-229 9.20 VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8486062B12)... 9-241 9.21 VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8486062B16 / 8486062B17 / 8486101B11)... 9-253 9.22 VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8486473Z03)... 9-269 9.23 VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8486473Z04)... 9-283 9.24 VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01)... 9-303 9.25 VHF Circuit Board/Schematic Diagrams and Parts List... 9-325 9.26 Low Band Circuit Board/Schematic Diagrams and Parts List... 9-337 9.27 800 MHz Circuit Board/Schematic Diagrams and Parts List (PCB 84860641Z02 / 8480641Z03 (Rev B)... 9-353 9.28 PassPort Circuit Board/Schematic Diagram... 9-373 9.29 900 MHz Circuit Board/Schematic Diagrams and Parts List (PCB 8485910Z01)... 9-375 Appendix A Replacement Parts Ordering... A-1 A.1 Basic Ordering Information...A-1 A.2 Transceiver Board and VOCON Board Ordering Information...A-1 A.3 Motorola Online...A-1 A.4 Mail Orders...A-1 A.5 Telephone Orders...A-2 A.6 Fax Orders...A-2 A.7 Parts Identification...A-2 A.8 Product Customer Service...A-2

x Table of Contents

List of Figures List of Figures xi Figure 2-1. DC Power Distribution Block Diagram... 2-1 Figure 3-1. Keypad Block Diagram... 3-1 Figure 3-2. Controller Block Diagram... 3-2 Figure 3-3. RTC Circuit... 3-3 Figure 4-1. Transmitter Block Diagram... 4-1 Figure 4-2. UHF Receiver Block Diagram... 4-3 Figure 4-3. Frequency Generation Unit Block Diagram... 4-4 Figure 4-4. Synthesizer Block Diagram... 4-5 Figure 4-5. VCO Block Diagram... 4-6 Figure 5-1. Transmitter Block Diagram... 5-1 Figure 5-2. UHF Receiver Block Diagram... 5-3 Figure 5-3. Frequency Generation Unit Block Diagram... 5-4 Figure 5-4. Synthesizer Block Diagram... 5-5 Figure 5-5. VCO Block Diagram... 5-6 Figure 6-1. Transmitter Block Diagram... 6-1 Figure 6-2. VHF Receiver Block Diagram... 6-3 Figure 6-3. VHF Receiver Block Diagram... 6-5 Figure 6-4. Frequency Generation Unit Block Diagram... 6-8 Figure 6-5. Synthesizer Block Diagram... 6-9 Figure 6-6. VCO Block Diagram... 6-10 Figure 7-1. Low Band Transmitter Block Diagram... 7-1 Figure 7-2. Low Band Receiver Block Diagram... 7-3 Figure 7-3. Low Band Frequency Generation Unit Block Diagram... 7-5 Figure 7-4. Low Band Synthesizer Block Diagram... 7-6 Figure 7-5. 800 MHz Transmitter Block Diagram... 7-7 Figure 7-6. 800 MHz Receiver Block Diagram... 7-9 Figure 7-7. 800 MHz Frequency Generation Unit Block Diagram... 7-11 Figure 7-8. 800 MHz Synthesizer Block Diagram... 7-12 Figure 7-9. 800 MHz VCO Block Diagram... 7-13 Figure 7-10. Transmitter Block Diagram... 7-16 Figure 7-11. 900 MHz Receiver Block Diagram... 7-18 Figure 7-12. Frequency Generation Unit Block Diagram... 7-21 Figure 7-13. Synthesizer Block Diagram... 7-23 Figure 7-14. VCO Block Diagram... 7-24 Figure 8-1. UHF/VHF/Low Band/800 MHz/900 MHz Circuit Board Fuse Locations... 8-6 Figure 8-2. Circuit Board Removal and Reinstallation... 8-7 Figure 9-1. Keypad-Controller Interconnect Flex... 9-2 Figure 9-2. Keypad-Controller Interconnect Flex Schematic Diagram... 9-3 Figure 9-3. Universal Flex Connector... 9-4 Figure 9-4. Universal Flex Connector Schematic Diagram... 9-5 Figure 9-5. Keypad Top and Bottom Board Overlays... 9-6 Figure 9-6. Keypad Board (5000 and 7000 Series) Schematic Diagram... 9-7 Figure 9-7. 9000 Series Keypad Top and Bottom Board Overlays... 9-9 Figure 9-8. 9000 Series Keypad Board Schematic Diagram... 9-10 Figure 9-9. VHF/UHF Complete Controller Schematic Diagram... 9-13 Figure 9-10. VHF/UHF Controller ASFIC/ON_OFF Schematic Diagram... 9-14 Figure 9-11. VHF/UHF Controller ASFIC/ON_OFF Schematic Diagram... 9-15 Figure 9-12. VHF/UHF Controller Microprocessor Schematic Diagram... 9-16

xii List of Figures Figure 9-13. VHF/UHF Controller Microprocessor Schematic Diagram... 9-17 Figure 9-14. Controller Memory Schematic Diagram... 9-18 Figure 9-15. Controller Audio Power Amplifier Schematic Diagram... 9-19 Figure 9-16. Controller Interface Schematic Diagram... 9-20 Figure 9-17. UHF (403-470 MHz) 5000/7000 Series Main Board Top Side PCB 8480450Z03... 9-21 Figure 9-18. UHF (403-470 MHz) 5000/7000 Series Main Board Bottom Side PCB 8480450Z03... 9-22 Figure 9-19. UHF (403-470 MHz) Controls and Switches Schematic Diagram... 9-23 Figure 9-20. UHF (403-470 MHz) Receiver Front End Schematic Diagram... 9-24 Figure 9-21. UHF (403-470 MHz) Receiver Back End Schematic Diagram... 9-25 Figure 9-22. UHF (403-470 MHz) Synthesizer Schematic Diagram... 9-26 Figure 9-23. UHF (403-470 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-27 Figure 9-24. UHF (403-470 MHz) Transmitter Schematic Diagram... 9-28 Figure 9-25. UHF (403-470 MHz) 5000/7000 Series Main Board Top Side PCB 8480450Z13... 9-33 Figure 9-26. UHF (403-470 MHz) 5000/7000 Series Main Board Bottom Side PCB 8480450Z13... 9-34 Figure 9-27. UHF (403-470 MHz) 5000/7000 Series Main Board Top Side PCB 8480587Z05... 9-35 Figure 9-28. UHF (403-470 MHz) 5000/7000 Series Main Board Bottom Side PCB 8480587Z05... 9-36 Figure 9-29. UHF (403-470 MHz) Controls and Switches Schematic Diagram... 9-37 Figure 9-30. UHF (403-470 MHz) Receiver Front End Schematic Diagram... 9-38 Figure 9-31. UHF (403-470 MHz) Receiver Back End Schematic Diagram... 9-39 Figure 9-32. UHF (403-470 MHz) Synthesizer Schematic Diagram... 9-40 Figure 9-33. UHF (403-470 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-41 Figure 9-34. UHF (403-470 MHz) Transmitter Schematic Diagram... 9-42 Figure 9-35. UHF (403-470 MHz) 5000/7000 Series Main Board Top Side PCB. 8480450Z14... 9-47 Figure 9-36. UHF (403-470 MHz) 5000/7000 Series Main Board Bottom Side PCB. 8480450Z14... 9-48 Figure 9-37. UHF (403-470 MHz) Controls And Switches Schematic Diagram... 9-49 Figure 9-38. UHF (403-470 MHz) Receiver Front End Schematic Diagram... 9-50 Figure 9-39. UHF (403-470 MHz) Receiver Back End Schematic Diagram... 9-51 Figure 9-40. UHF (403-470 MHz) Synthesizer Schematic Diagram... 9-52 Figure 9-41. UHF (403-470 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-53 Figure 9-42. UHF (403-470 MHz) Harmonic Filter Schematic Diagram... 9-54 Figure 9-43. UHF (403-470 MHz) Transmitter Schematic Diagram... 9-55 Figure 9-44. UHF (403-470 MHz) Complete Controller Schematic Diagram... 9-56 Figure 9-45. UHF (403-470 MHz) Controller ASFIC/ON_OFF Schematic Diagram... 9-57 Figure 9-46. UHF (403-470 MHz) Controller Microprocessor Schematic Diagram... 9-58 Figure 9-47. UHF (403-430 MHz) Controller Memory Schematic Diagram... 9-59 Figure 9-48. UHF (403-470 MHz) Controller Audio Power Amplifier Schematic Diagram... 9-60 Figure 9-49. UHF (403-470 MHz) Controller Interface Schematic Diagram... 9-61 Figure 9-50. UHF (403-470 MHz) 5000/7000 Series Main Board Top Side PCB. 8486458Z02... 9-67 Figure 9-51. UHF (403-470 MHz) 5000/7000 Series Main Board Bottom Side PCB. 8486458Z02... 9-68 Figure 9-52. UHF (403-470 MHz) Controls And Switches Schematic Diagram... 9-69 Figure 9-53. UHF (403-470 MHz) Receiver Front-End Schematic Diagram... 9-70 Figure 9-54. UHF (403-470 MHz) Receiver Back-End Schematic Diagram... 9-71

List of Figures xiii Figure 9-55. UHF (403-470 MHz) Synthesizer Schematic Diagram... 9-72 Figure 9-56. UHF (403-470 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-73 Figure 9-57. UHF (403-470 MHz) Harmonic Filter Schematic Diagram... 9-74 Figure 9-58. UHF (403-470 MHz) Transmitter Schematic Diagram... 9-75 Figure 9-59. UHF (403-470 MHz) Controller ASFIC/ON_OFF Schematic Diagram... 9-76 Figure 9-60. UHF (403-470 MHz) 5000/7000 Series Main Board Top Side PCB. 8486458Z03... 9-81 Figure 9-61. UHF (403-470 MHz) 5000/7000 Series Main Board Bottom Side PCB. 8486458Z03... 9-82 Figure 9-62. UHF (403-470 MHz) Controls And Switches Schematic Diagram... 9-83 Figure 9-63. UHF (403-470 MHz) Receiver Front End Schematic Diagram... 9-84 Figure 9-64. UHF (403-470 MHz) Receiver Back End Schematic Diagram... 9-85 Figure 9-65. UHF (403-470 MHz) Synthesizer Schematic Diagram... 9-86 Figure 9-66. UHF (403-470 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-87 Figure 9-67. UHF (403-470 MHz) Harmonic Filter Schematic Diagram... 9-88 Figure 9-68. UHF (403-470 MHz) Transmitter Schematic Diagram... 9-89 Figure 9-69. UHF (403-470 MHz) Complete Controller Schematic Diagram... 9-90 Figure 9-70. UHF (403-470 MHz) Controller ASFIC/ON_OFF Schematic Diagram... 9-91 Figure 9-71. UHF (403-470 MHz) Controller Microprocessor Schematic Diagram... 9-92 Figure 9-72. UHF (403-430 MHz) Controller Memory Schematic Diagram... 9-93 Figure 9-73. UHF (403-470 MHz) Controller Audio Power Amplifier Schematic Diagram... 9-94 Figure 9-74. UHF (403-470 MHz) Controller Interface Schematic Diagram... 9-95 Figure 9-75. UHF (403-470 MHz) Main Board Top Side PCB. 8415234H01... 9-101 Figure 9-76. UHF (403-470 MHz) Main Board Bottom Side PCB. 8415234H01... 9-102 Figure 9-77. UHF Controls And Switches Schematic Diagram... 9-103 Figure 9-78. UHF Receiver Front End Schematic Diagram... 9-104 Figure 9-79. UHF Receiver Back End Schematic Diagram... 9-105 Figure 9-80. UHF Synthesizer Schematic Diagram... 9-106 Figure 9-81. UHF Voltage Controlled Oscillator Schematic Diagram... 9-107 Figure 9-82. UHF Harmonic Filter Schematic Diagram... 9-108 Figure 9-83. UHF Transmitter Schematic Diagram... 9-109 Figure 9-84. Complete Controller Schematic Diagram... 9-110 Figure 9-85. Controller ASFIC/ON_OFF Schematic Diagram... 9-111 Figure 9-86. Controller Microprocessor Schematic Diagram... 9-112 Figure 9-87. Controller Memory Schematic Diagram... 9-113 Figure 9-88. Controller Audio Power Amplifier Schematic Diagram... 9-114 Figure 9-89. Controller Interface Schematic Diagram... 9-115 Figure 9-90. UHF (403-470 MHz) 9000 Series Main Board Top Side PCB... 9-123 Figure 9-91. UHF (403-470 MHz) 9000 Series Main Board Bottom Side PCB... 9-124 Figure 9-92. UHF (403-470 MHz) Controls and Switches Schematic Diagram... 9-125 Figure 9-93. UHF (403-470 MHz) Receiver Front End Schematic Diagram... 9-126 Figure 9-94. UHF (403-470 MHz) Receiver Back End Schematic Diagram... 9-127 Figure 9-95. UHF (403-470 MHz) Synthesizer Schematic Diagram... 9-128 Figure 9-96. UHF (403-470 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-129 Figure 9-97. UHF (403-470 MHz) Transmitter Schematic Diagram... 9-130 Figure 9-98. UHF (450-527 MHz) 5000/7000 Series Main Board Top Side PCB 8485641Z02... 9-135 Figure 9-99. UHF (450-527 MHz) 5000/7000 Series Main Board Bottom Side PCB 8485641Z02... 9-136 Figure 9-100. UHF (450-527 MHz) Controls and Switches Schematic Diagram... 9-137 Figure 9-101. UHF (450-527 MHz) Receiver Front End Schematic Diagram... 9-138 Figure 9-102. UHF (450-527 MHz) Receiver Back End Schematic Diagram... 9-139 Figure 9-103. UHF (450-527 MHz) Synthesizer Schematic Diagram... 9-140

xiv List of Figures Figure 9-104. UHF (450-527 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-141 Figure 9-105. UHF (450-527 MHz) Transmitter Schematic Diagram... 9-142 Figure 9-106. UHF (450-527 MHz) 5000/7000 Series Main Board Top Side PCB 8485641Z06... 9-147 Figure 9-107. UHF (450-527 MHz) 5000/7000 Series Main Board Bottom Side PCB 8485641Z06... 9-148 Figure 9-108. UHF (450-527 MHz) 5000/7000 Series Main Board Top Side PCB 8485677Z03... 9-149 Figure 9-109. UHF (450-527 MHz) 5000/7000 Series Main Board Bottom Side PCB 8486677Z03... 9-150 Figure 9-110. UHF (450-527 MHz) Controls and Switches Schematic Diagram... 9-151 Figure 9-111. UHF (450-527 MHz) Receiver Front End Schematic Diagram... 9-152 Figure 9-112. UHF (450-527 MHz) Receiver Back End Schematic Diagram... 9-153 Figure 9-113. UHF (450-527 MHz) Synthesizer Schematic Diagram... 9-154 Figure 9-114. UHF (450-527 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-155 Figure 9-115. UHF (450-527 MHz) Transmitter Schematic Diagram... 9-156 Figure 9-116. UHF (450-527 MHz) 5000/7000 Series Main Board Top Side PCB. 8486686Z01... 9-161 Figure 9-117. UHF (450-527 MHz) 5000/7000 Series Main Board Bottom Side PCB. 8486686Z01... 9-162 Figure 9-118. UHF (450-527 MHz) Controls and Switches Schematic Diagram... 9-163 Figure 9-119. UHF (450-527 MHz) Receiver Front End Schematic Diagram... 9-164 Figure 9-120. UHF (450-527 MHz) Receiver Back End Schematic Diagram... 9-165 Figure 9-121. UHF (450-527 MHz) Synthesizer Schematic Diagram... 9-166 Figure 9-122. UHF (450-527 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-167 Figure 9-123. UHF (450-527 MHz) Harmonic Filter Schematic Diagram... 9-168 Figure 9-124. UHF (450-527 MHz) Transmitter Schematic Diagram... 9-169 Figure 9-125. UHF (450-527 MHz) Controller ASFIC/ON_OFF Schematic Diagram... 9-170 Figure 9-126. UHF (450-527 MHz) 5000/7000 Series Main Board Top Side PCB. 8486686Z02... 9-175 Figure 9-127. UHF (450-527 MHz) 5000/7000 Series Main Board Bottom Side PCB. 8486686Z02... 9-176 Figure 9-128. UHF (450-527 MHz) Controls And Switches Schematic Diagram... 9-177 Figure 9-129. UHF (450-527 MHz) Receiver Front End Schematic Diagram... 9-178 Figure 9-130. UHF (450-527 MHz) Receiver Back End Schematic Diagram... 9-179 Figure 9-131. UHF (450-527 MHz) Synthesizer Schematic Diagram... 9-180 Figure 9-132. UHF (450-527 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-181 Figure 9-133. UHF (450-527 MHz) Harmonic Filter Schematic Diagram... 9-182 Figure 9-134. UHF (450-527 MHz) Transmitter Schematic Diagram... 9-183 Figure 9-135. UHF (450-527 MHz) Complete Controller Schematic Diagram... 9-184 Figure 9-136. UHF (450-527 MHz) Controller ASFIC/ON_OFF Schematic Diagram... 9-185 Figure 9-137. UHF (450-527 MHz) Controller Microprocessor Schematic Diagram... 9-186 Figure 9-138. UHF (450-527 MHz) Controller Memory Schematic Diagram... 9-187 Figure 9-139. UHF (450-527 MHz) Controller Audio Power Amplifier Schematic Diagram... 9-188 Figure 9-140. UHF (450-527 MHz) Controller Interface Schematic Diagram... 9-189 Figure 9-141. UHF Band 2 (450-527 MHz) Main Board Top Side PCB. 8415235H01... 9-195 Figure 9-142. UHF Band 2 (450-527 MHz) Main Board Bottom Side PCB. 8415235H01... 9-196 Figure 9-143. UHF Band 2 Controls And Switches Schematic Diagram... 9-197 Figure 9-144. UHF Band 2 Receiver Front End Schematic Diagram... 9-198 Figure 9-145. UHF Band 2 Receiver Back End Schematic Diagram... 9-199 Figure 9-146. UHF Band 2 Synthesizer Schematic Diagram... 9-200

List of Figures xv Figure 9-147. UHF Band 2 Voltage Controlled Oscillator Schematic Diagram... 9-201 Figure 9-148. UHF Band 2 Harmonic Filter Schematic Diagram... 9-202 Figure 9-149. UHF Band 2 Transmitter Schematic Diagram... 9-203 Figure 9-150. Complete Controller Schematic Diagram... 9-204 Figure 9-151. Controller ASFIC/ON_OFF Schematic Diagram... 9-205 Figure 9-152. Controller Microprocessor Schematic Diagram... 9-206 Figure 9-153. Controller Memory Schematic Diagram... 9-207 Figure 9-154. Controller Audio Power Amplifier Schematic Diagram... 9-208 Figure 9-155. Controller Interface Schematic Diagram... 9-209 Figure 9-156. UHF (450-527 MHz) 9000 Series Main Board Top Side PCB... 9-217 Figure 9-157. UHF (450-527 MHz) 9000 Series Main Board Bottom Side PCB... 9-218 Figure 9-158. UHF (450-527 MHz) Controls and Switches Schematic Diagram... 9-219 Figure 9-159. UHF (450-527 MHz) Receiver Front End Schematic Diagram... 9-220 Figure 9-160. UHF (450-527 MHz) Receiver Back End Schematic Diagram... 9-221 Figure 9-161. UHF (450-527 MHz) Synthesizer Schematic Diagram... 9-222 Figure 9-162. UHF (450-527 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-223 Figure 9-163. UHF (450-527 MHz) Transmitter Schematic Diagram... 9-224 Figure 9-164. UHF (450-527 MHz) Voice Storage Schematic Diagram... 9-225 Figure 9-165. VHF (136-174 MHz) 5000/7000 Series Main Board Top Side PCB 8486062B09... 9-229 Figure 9-166. VHF (136-174 MHz) 5000/7000 Series Main Board Bottom Side PCB 8486062B09... 9-230 Figure 9-167. VHF (136-174 MHz) Controls and Switches Schematic Diagram... 9-231 Figure 9-168. VHF (136-174 MHz) Receiver Front End Schematic Diagram... 9-232 Figure 9-169. VHF (136-174 MHz) Receiver Back End Schematic Diagram... 9-233 Figure 9-170. VHF (136-174 MHz) Synthesizer Schematic Diagram... 9-234 Figure 9-171. VHF (136-174 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-235 Figure 9-172. VHF (136-174 MHz) Transmitter Schematic Diagram... 9-236 Figure 9-173. VHF (136-174 MHz) 5000/7000 Series Main Board Top Side PCB 8486062B12... 9-241 Figure 9-174. VHF (136-174 MHz) 5000/7000 Series Main Board Bottom Side PCB 8486062B12... 9-242 Figure 9-175. VHF (136-174 MHz) Controls and Switches Schematic Diagram... 9-243 Figure 9-176. VHF (136-174 MHz) Receiver Front End Schematic Diagram... 9-244 Figure 9-177. VHF (136-174 MHz) Receiver Back End Schematic Diagram... 9-245 Figure 9-178. VHF (136-174 MHz) Synthesizer Schematic Diagram... 9-246 Figure 9-179. VHF (136-174 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-247 Figure 9-180. VHF (136-174 MHz) Transmitter Schematic Diagram... 9-248 Figure 9-181. VHF (136-174 MHz) 5000/7000 Series Main Board Top Side PCB 8486062B16... 9-253 Figure 9-182. VHF (136-174 MHz) 5000/7000 Series Main Board Bottom Side PCB 8486062B16... 9-254 Figure 9-183. VHF (136-174 MHz) 5000/7000 Series Main Board Top Side PCB 8486062B17... 9-255 Figure 9-184. VHF (136-174 MHz) 5000/7000 Series Main Board Bottom Side PCB 8486062B17... 9-256 Figure 9-185. VHF (136-174 MHz) 5000/7000 Series Main Board Top Side PCB 8486101B11... 9-257 Figure 9-186. VHF (136-174 MHz) 5000/7000 Series Main Board Bottom Side PCB 8486101B11... 9-258 Figure 9-187. VHF (136-174 MHz) Controls and Switches Schematic Diagram... 9-259 Figure 9-188. VHF (136-174 MHz) Receiver Front End Schematic Diagram... 9-260 Figure 9-189. VHF (136-174 MHz) Receiver Back End Schematic Diagram... 9-261

xvi List of Figures Figure 9-190. VHF (136-174 MHz) Synthesizer Schematic Diagram... 9-262 Figure 9-191. VHF (136-174 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-263 Figure 9-192. VHF (136-174 MHz) Transmitter Schematic Diagram... 9-264 Figure 9-193. VHF (136-174 MHz) 5000/7000 Series Main Board Top Side PCB. 8486473Z03... 9-269 Figure 9-194. VHF (136-174 MHz) 5000/7000 Series Main Board Bottom Side PCB. 8486473Z03... 9-270 Figure 9-195. VHF (136-174 MHz) Controls And Switches Schematic Diagram... 9-271 Figure 9-196. VHF (136-174 MHz) Receiver Front-End Schematic Diagram... 9-272 Figure 9-197. VHF (136-174 MHz) Receiver Back-End Schematic Diagram... 9-273 Figure 9-198. VHF (136-174 MHz) Synthesizer Schematic Diagram... 9-274 Figure 9-199. VHF (136-174 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-275 Figure 9-200. VHF (136-174 MHz) Transmitter Schematic Diagram... 9-276 Figure 9-201. VHF (136-174 MHz) Controller ASFIC/ON_OFF Schematic Diagram... 9-277 Figure 9-202. VHF (136-174 MHz) 5000/7000 Series Main Board Top Side PCB. 8486473Z04... 9-283 Figure 9-203. VHF (136-174 MHz) 5000/7000 Series Main Board Bottom Side PCB. 8486473Z04... 9-284 Figure 9-204. VHF (136-174 MHz) Controls And Switches Schematic Diagram... 9-285 Figure 9-205. VHF (136-174 MHz) Receiver Front End Schematic Diagram... 9-286 Figure 9-206. VHF (136-174 MHz) Receiver Back End Schematic Diagram... 9-287 Figure 9-207. VHF (136-174 MHz) Synthesizer Schematic Diagram... 9-288 Figure 9-208. VHF (136-174 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-289 Figure 9-209. VHF (136-174 MHz) Transmitter Schematic Diagram... 9-290 Figure 9-210. VHF (136-174 MHz) Complete Controller Schematic Diagram... 9-291 Figure 9-211. VHF (136-174 MHz) Controller ASFIC/ON_OFF Schematic Diagram... 9-292 Figure 9-212. VHF (136-174 MHz) Controller Microprocessor Schematic Diagram... 9-293 Figure 9-213. VHF (136-174 MHz) Controller Memory Schematic Diagram... 9-294 Figure 9-214. VHF (136-174 MHz) Controller Audio Power Amplifier Schematic Diagram... 9-295 Figure 9-215. VHF (136-174 MHz) Controller Interface Schematic Diagram... 9-296 Figure 9-216. VHF (136-174 MHz) Main Board Top Side PCB. 8415112H01... 9-303 Figure 9-217. VHF (136-174 MHz) Main Board Bottom Side PCB. 8415112H01... 9-304 Figure 9-218. VHF Controls And Switches Schematic Diagram... 9-305 Figure 9-219. VHF Receiver Front End Schematic Diagram... 9-306 Figure 9-220. VHF Receiver Back End Schematic Diagram... 9-307 Figure 9-221. VHF Synthesizer Schematic Diagram... 9-308 Figure 9-222. VHF Voltage Controlled Oscillator Schematic Diagram... 9-309 Figure 9-223. VHF Transmitter Schematic Diagram... 9-310 Figure 9-224. Complete Controller Schematic Diagram... 9-311 Figure 9-225. Controller ASFIC/ON_OFF Schematic Diagram... 9-312 Figure 9-226. Controller Microprocessor Schematic Diagram... 9-313 Figure 9-227. Controller Memory Schematic Diagram... 9-314 Figure 9-228. Controller Audio Power Amplifier Schematic Diagram... 9-315 Figure 9-229. Controller Interface Schematic Diagram... 9-316 Figure 9-230. VHF (136-174 MHz) 9000 Series Main Board Top Side PCB... 9-325 Figure 9-231. VHF (136-174 MHz) 9000 Series Main Board Bottom Side PCB... 9-326 Figure 9-232. VHF (136-174 MHz) Controls and Switches Schematic Diagram... 9-327 Figure 9-233. VHF (136-174 MHz) Receiver Front End Schematic Diagram... 9-328 Figure 9-234. VHF (136-174 MHz) Receiver Back End Schematic Diagram... 9-329 Figure 9-235. VHF (136-174 MHz) Synthesizer Schematic Diagram... 9-330 Figure 9-236. VHF (136-174 MHz) Voltage Controlled Oscillator Schematic Diagram... 9-331 Figure 9-237. VHF (136-174 MHz) Transmitter Schematic Diagram... 9-332

List of Figures xvii Figure 9-238. Low Band (29.7-42/35-50 MHz) Main Board Top Side PCB... 9-337 Figure 9-239. Low Band (29.7-42/35-50 MHz) Main Board Bottom Side PCB... 9-338 Figure 9-240. Low Band (30-50 MHz) Controls and Switches Diagram... 9-339 Figure 9-241. Low Band (29.7-42/35-50 MHz) Controller Overall Schematic Diagram... 9-340 Figure 9-242. Low Band (29.7-42/35-50 MHz) Controller Memory Schematic Diagram... 9-341 Figure 9-243. Low Band (29.7-42/35-50 MHz) Controller AFSIC Schematic Diagram... 9-342 Figure 9-244. Low Band (29.7-42/35-50 MHz) Controller Microprocessor Schematic Diagram... 9-343 Figure 9-245. Low Band (29.7-42/35-50 MHz) Controller Audio PA Schematic Diagram... 9-344 Figure 9-246. Low Band (29.7-42/35-50 MHz) Receiver Front End Schematic Diagram... 9-345 Figure 9-247. Low Band (29.7-42/35-50 MHz) Receiver Back End Schematic Diagram... 9-346 Figure 9-248. Low Band (29.7-42/35-50 MHz) Frequency Generation Unit Synthesizer... 9-347 Figure 9-249. Low Band (29.7-42/35-50 MHz) Frequency Generation Unit VCO Diagram... 9-348 Figure 9-250. Low Band (29.7-42/35-50 MHz) Transmitter Schematic Diagram... 9-349 Figure 9-251. 800 MHz (806-870 MHz) Main Board Top Side PCB 84860641Z02... 9-353 Figure 9-252. 800 MHz (806-870 MHz) Main Board Bottom Side PCB 84860641Z02... 9-354 Figure 9-253. 800 MHz Popular/Preferred (806-870 MHz) Main Board Top Side PCB 8480641Z03 (Rev B)... 9-355 Figure 9-254. 800 MHz Popular/Preferred (806-870 MHz) Main Board Bottom Side PCB 8480641Z03 (Rev B)... 9-356 Figure 9-255. 800 MHz Complete Controller... 9-357 Figure 9-256. 800 MHz Controller ASFIC/ON_OFF... 9-358 Figure 9-257. 800 MHz Controller Microprocessor... 9-359 Figure 9-258. 800 MHz Controller Memory... 9-360 Figure 9-259. 800 MHz Controller Audio Power Amplifier... 9-361 Figure 9-260. 800 MHz Controller Interface... 9-362 Figure 9-261. 800 MHz Controls and Switches Schematic Diagram... 9-363 Figure 9-262. 800 MHz Receiver Front End Schematic Diagram... 9-364 Figure 9-263. 800 MHz Receiver Back End Schematic Diagram... 9-365 Figure 9-264. 800 MHz Synthesizer Schematic Diagram... 9-366 Figure 9-265. 800 MHz Voltage Controlled Oscillator Schematic Diagram... 9-367 Figure 9-266. 800 MHz Transmitter Schematic Diagram (Rev A)... 9-368 Figure 9-267. 800MHz Transmitter Schematic Diagram (Rev B)... 9-369 Figure 9-268. PassPort Trunking Controller PCB Board Side 1 & 2... 9-373 Figure 9-269. PassPort Controller Schematic Diagram... 9-374 Figure 9-270. 900 MHz (896-941 MHz) Main Board Top Side PCB 8485910Z01... 9-375 Figure 9-271. 900 MHz (896-941 MHz) Main Board Bottom Side PCB 8485910Z01... 9-376 Figure 9-272. 900 MHz Complete Controller... 9-377 Figure 9-273. 900 MHz Controller ASFIC/ON_OFF... 9-378 Figure 9-274. 900 MHz Controller Microprocessor... 9-379 Figure 9-275. 900 MHz Controller Memory... 9-380 Figure 9-276. 900 MHz Controller Audio Power Amplifier... 9-381 Figure 9-277. 900 MHz Controller Interface... 9-382 Figure 9-278. 900 MHz Controls and Switches Schematic Diagram... 9-383 Figure 9-279. 900 MHz Receiver Front End Schematic Diagram... 9-384 Figure 9-280. 900 MHz Receiver Back End Schematic Diagram... 9-385 Figure 9-281. 900 MHz Synthesizer Schematic Diagram... 9-386 Figure 9-282. 900 MHz Hear/Clear Schematic Diagram... 9-387 Figure 9-283. 900 MHz Voltage Controlled Oscillator Schematic Diagram... 9-388 Figure 9-284. 900 MHz Transmitter Schematic Diagram... 9-389

xviii List of Figures

FMRC Approved Equipment xix Intrinsically Safe Radio Information FMRC Approved Equipment Anyone intending to use a radio in a location where hazardous concentrations of flammable materials exist (hazardous atmosphere) is advised to become familiar with the subject of intrinsic safety and with the National Electric Code NFPA 70 (National Fire Protection Association) Article 500 (hazardous [classified] locations). An Approval Guide, issued by Factory Mutual Research Corporation (FMRC), lists manufacturers and the products approved by FMRC for use in such locations. FMRC has also issued a voluntary approval standard for repair service ( Class Number 3605 ). FMRC Approval labels are attached to the radio to identify the unit as being FM Approved for specified hazardous atmospheres. This label specifies the hazardous Class/Division/Group along with the part number of the battery that must be used. Depending on the design of the portable unit, this FM label can be found on the back or the bottom of the radio housing. The FM Approval mark is shown below. FM APPROVED! W A R N I N G Do not operate radio communications equipment in a hazardous atmosphere unless it is a type especially qualified (for example, FMRC Approved) for such use. An explosion or fire may result. Do not operate an FMRC Approved Product in a hazardous atmosphere if it has been physically damaged (for example, cracked housing). An explosion or fire may result. Do not replace or charge batteries in a hazardous atmosphere. Contact sparking may occur while installing or removing batteries and cause an explosion or fire. Do not replace or change accessories in a hazardous atmosphere. Contact sparking may occur while installing or removing accessories and cause an explosion or fire. Turn a radio off before removing or installing a battery or accessory. Do not disassemble an FMRC Approved Product unit in any way that exposes the internal electrical circuits of the unit. Radios must ship from the Motorola manufacturing facility with the Intrinsically Safe, hazardous atmosphere capability and FM Approval labeling. Radios will not be upgraded or converted to Intrinsically safe, and or labeled in the field, after it has been shipped from the manufacturing location. Modifications can only be made by the original product manufacturer (Motorola) at one of its FM audited manufacturing facilities.

xx Repair of FMRC Approved Products! W A R N I N G Failure to use an FMRC Approved portable radio unit with an FMRC Approved battery or FMRC Approved accessories specifically Agency approved for that product may result in the dangerously unsafe condition of an unapproved radio combination being used in a hazardous location. Unauthorized or incorrect modification of an FMRC Approved Product unit will negate the Approval rating of the product. Repair of FMRC Approved Products REPAIRS FOR MOTOROLA PRODUCTS WITH FMRC APPROVAL ARE THE RESPONSIBILITY OF THE USER. You should not repair or relabel any Motorola- manufactured communication equipment bearing the FMRC Approval label ( FMRC Approved Product ) unless you are familiar with the current FMRC Approval standard for repairs and service ( Class Number 3605 ). Repairs and service to be done FM audited locations.! W A R N I N G Incorrect repair or relabeling of any FMRC Approved Product unit could adversely affect the Approval rating of the unit. Use of a radio that is not intrinsically safe in a hazardous atmosphere could result in serious injury or death. Repair Relabeling The following are key definitions, from the FMRC s Approval Standard Class Number 3605, 1994. A repair constitutes something done internally to the unit that would bring it back to its original condition-approved by FMRC. A repair should be done in an FMRC audited facility. Items not considered as repairs are those in which an action is performed on a unit which does not require the outer casing of the unit to be opened in a manner which exposes the internal electrical. You do not have to be an FMRC audited Repair Facility to perform these actions. The repair facility shall have a method by which the replacement of FMRC Approval labels are controlled to ensure that any relabeling is limited to units that were originally shipped from the Manufacturer with an FM Approval label in place. FMRC Approval labels shall not be stocked by the repair facility. An FMRC Approval label shall be ordered from the original manufacturer, as needed, to repair a specific unit. Replacement labels may be obtained and applied by the repair facility, provided there is satisfactory evidence that the unit being relabeled was originally an FMRC Approved unit. Verification may include, but is not limited to: a unit with a damaged Approval label, a unit with a defective housing displaying an Approval label, or a customer invoice indicating the serial number of the unit and purchase of an FMRC Approved model.

Repair of FMRC Approved Products xxi Do t Substitute Options or Accessories The Motorola communications equipment certified by Factory Mutual is tested as a system and consists of the FM Approved portable, FM Approved battery, and FM Approved accessories or options, or both. This FM Approved portable and battery combination must be strictly observed. There must be no substitution of items, even if the substitute has been previously Approved with a different Motorola communications equipment unit. Approved configurations are listed in the FM Approval Guide published by FMRC, or in the product FM product listing. This FM product listing is shipped from the manufacturer with the FM Approved radio and battery combination.

xxii Repair of FMRC Approved Products tes

1-1 Chapter 1 Introduction 1.1 Scope of Manual This manual is intended for use by service technicians familiar with similar types of equipment. It contains service information required for the equipment described and is current as of the printing date. Changes that occur after the printing date are incorporated by a complete manual revision or alternatively, as additions. TE: Before operating or testing these units, please read the sections, "Product Safety and RF Exposure Compliance" on page ii and "Intrinsically Safe Radio Information" on page xix. 1.2 Warranty and Service Support Motorola offers long term support for its products. This support includes full exchange and/or repair of the product during the warranty period, and service/repair or spare parts support out of warranty. Any return for exchange or return for repair by an authorized Motorola dealer must be accompanied by a warranty claim form. Warranty claim forms are obtained by contacting customer service. 1.2.1 Warranty Period The terms and conditions of warranty are defined fully in the Motorola dealer or distributor or reseller contract. These conditions may change from time to time and the following notes are for guidance purposes only. 1.2.2 Return Instructions In instances where the product is covered under a return for replacement or return for repair warranty, a check of the product should be performed prior to shipping the unit back to Motorola. This is to ensure that the product has been correctly programmed or has not been subjected to damage outside the terms of the warranty. Prior to shipping any radio back to a Motorola warranty depot, please contact the appropriate customer service for instructions. All returns must be accompanied by a warranty claim form, available from your customer services representative. Products should be shipped back in the original packaging, or correctly packaged to ensure no damage occurs in transit. 1.2.3 After Warranty Period After the Warranty period, Motorola continues to support its products in two ways: First, Motorola's Customer Care and Services Division offers a repair service to both end users and dealers at competitive prices. Second, Motorola s service department supplies individual parts and modules that can be purchased by dealers who are technically capable of performing fault analysis and repair.

1-2 Introduction: Related Documents 1.3 Related Documents The following documents are directly related to the use and maintainability of this product. Table 1-1. Related Documents Title Professional Radio Portable Level 1&2 Basic Service Manual- English (rth America) Professional Radio Portable Level 1&2 Basic Service Manual- English (Latin America) Professional Radio Portable Level 1&2 Basic Service Manual- Spanish Professional Radio Portable Level 1&2 Basic Service Manual- Portuguese Professional Radio Portable Service Manual Level 3 - English Professional Radio Portable Service Manual Level 3 - Spanish Professional Radio Portable Service Manual Level 3 - Portuguese Supplement to Professional Radio Portable Level 1&2 Basic Service Manual Part Number 68P80906Z54 68P81088C45 68P81088C47 68P81088C49 68P81088C46 68P81088C48 68P81088C50 68P81093C57 1.4 Technical Support Technical support is available to assist the dealer/distributor and self-maintained customers in resolving any malfunction which may be encountered. Initial contact should be by telephone to customer resources wherever possible. When contacting Motorola technical support, be prepared to provide the product model number and the unit s serial number. The contact locations and telephone numbers are located in the applicable basic service manual listed in Table 1-1 above. 1.4.1 Piece Parts Availability Some replacement parts, spare parts, and/or product information can be ordered directly. If a complete Motorola part number is assigned to the part, and it is not identified as Depot ONLY, the part is available from Motorola Customer Care and Services Division. If no part number is assigned, the part is not normally available from Motorola. If the part number is appended with an asterisk, the part is serviceable by a Motorola depot only. If a parts list is not included, this generally means that no user-serviceable parts are available for that kit or assembly.